Tendering or call for bids, can also be referred to as Public Procurement, a way in which Bodies governed by Public Law (such as Local Authorities, schools, hospitals, utilities…) buy what they need for their activities. Tenders are governed by EU as well as the various countries legislation.
Don’t government agencies send out an RFP (request for proposal) or RFQ (request for quote) document that details all portions of the project, including requirements of tenderers?
Couldn’t that provide the basis for your template?